We are 100% delighted with the Okna 800 series window windows we had bought and had installed by superior. The salesman John Varca was very knowledgeable, very helpful, and very patient as we spent a number of months finalizing the details of the 21 windows we had replaced. Installed a large garden window in our family room and replaced three double Hung with a 25/50/25 slider as well as replacing 18 double hung windows. The quality of the Okna windows appears excellent. They fit tightly And l... Read more
